Addition of Integers
Last updated at October 8, 2025 by Teachoo
Transcript
Question 1 - Page 246 Evaluate these expressions by thinking of them as the resulting movement of combining button presses: (a) (+1) + (+4) = _____________(+1) + (+4) = 1 + 4 = 5 We can also write 5 as +5 Question 1 - Page 246 Evaluate these expressions by thinking of them as the resulting movement of combining button presses: (b) (+4) + (+1) = _____________(+4) + (+1) = 4 + 1 = 5 Question 1 - Page 246 Evaluate these expressions by thinking of them as the resulting movement of combining button presses: (c) (+4) + (–3) + (–2) = _______(+4) + (–3) + (–2) = 4 – 3 – 2 Taking – common = 4 – (3 + 2) = 4 – 5 Taking – common = –(–4 + 5) = –(5 – 4) = –1 Question 1 - Page 246 Evaluate these expressions by thinking of them as the resulting movement of combining button presses: (d) (–1) + (+2) + (–3) = _______(–1) + (+2) + (–3) = –1 + 2 – 3 Grouping negative numbers together = 2 – 1 – 3 Taking – common = 2 – (1 + 3) = 2 – 4 Taking – common = –(–2 + 4) = –(4 – 2) = –2